Xjxysses g-



U. G. McQUEEN.

HANGER.

APPLICATION FILED APR. 24. 1917- Patented Nov. 25, 1919;;T

INVENTOR,

- ATTORNEY WITNESSES Q 7%5.

ULYssEs e. MCQUEEN, or new YoaK, N; Y.

HANGER.

Specification of Letters Patent.

Patented Nov. 25, 1919.

Application filed April 24, 1917. Serial No. 164,203.

To all whom it may concern:

Be it known that I, ULYssEs Gr. MoQUnnN, citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Hangers, of which the following is a specification. This invention relates to door hangers and particularly tothat class employed for the purpose of operatively supporting horizontally sliding doors.

An object of the invention is to provide a door hanger which can be easily installed and quickly adjusted; one which will include a track and a sliding bar supported therefrom and adapted to move lengthwise of the track and which will have combined and associated therewith a means for preventing the sliding bar from moving vertically out of an intended normal position and also serving to prevent an application of undue strains upon the rail.

Another object of the invention is to provide a door hanger in which means are employed for facilitatingan attachment of the hanging brackets or straps thereto to which the door is adapted to be connected.

. A still further object of the invention is to provioe a construction wherein the sliding door carrier bar or rail is supported from the track by a three-point suspension the same comprising opposed sets of antifriction bearings disposed between the respective sides of the bar and the sides of the track and a third set of antifriction bearings disposed between the base of the bar and, bottom of the track, the said sets of bearings cooperating to sustain and equalize the strain of the weight of the door upon the portions of the track, as well as to secure other desirable advantages hereinafter fully described.

"With the above and other objects in view which will appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangements of parts which will hereinafter be fully described.and'particularly pointed out in the claims;

In the accompanying drawings, has been illustrated, asingle and preferred form'of the invention, it being, however, understood that no limitations are necessarily made to the precise structural details therein exhibited, but: that"v changes, alterations and modi fications within the scope of the claims may be resorted to when desired.

In the drawings The figure is a vertical the hanger. On reference to the drawing, the hanger includes artrack 1, provided with substantially parallel sides 2 and 3, a connecting upper flange 4, and a base flange 1. The Slde wall 2, is provided with a race-way 5, havlng relatively diverging or angular surfaces 6+6, which are disposed directly opposite similar surfaces 77, which are formed in one side of a sliding bar 8. The said surfaces 77, constitute a race-way which is adapted to mate with the race-way 5, as clearly shown.

The opposite side wall 3, is provided with a race-way 9, having angularly disposed or relatively diverging surfaces 1010, which mate with similar surfaces 1111, formed'in the other side face of the sliding bar. Each of the last mentioned surfaces combine with one another tocform a race-way 12, in the bar, which is located directly opposite therace-way 9.

The base flange P, is also provided with section through a race-way 13', having angularly disposed spherical anti-friction bodies 17 which are mounted in openings formed in a spacer 18,

which is interposed between the sliding bar and the track 1, and is designed to hold said spherical bodies equi-distantly spaced apart with a consequent equal distribution of the load against said body.

I The relatively diverging surfaces formed in the respective race-ways both in the track 1, and in the sliding bar 8, extend at a tangent to the anti-friction bodies so as to minimize the contact between the bodies and said surfaces which will permit the bar 8, to slide with great ease in the length of the track and also enable the .door tobe adjusted. withbutlittle exertion on part of the operator.

"The tangential contact of. the walls of the race-ways with the anti-friction bodies also furnishes a means-whereby the sliding bar is positively held against any irregular or undu ver i al mo ements when the dooriis adjusted. The anti-friction bodies at'the base of the bar 8, serve to proportionately receive certain axial strains which" are applied to the structure when the door is 5 moved in one direction or another and incie.

dent to this arrangement, I positively pre-., vent any tendency of the load from forcing tlie'anti-friction bodies in the vertical sides of-the bar 8, in the directionrof the restricted portions of the race-ways 5 and 9. This construction also-operates to prevent the sides 2 and 8, 'fromseparating laterally under the action of weight when supported from the bar 8.

A. strap or bracket 19, is employed for the purpose ofconnecting the bar 8, with the door and as shown, it is provided with a continuous lug-20, which fits a corresponding groove 21, in the bar 8. Said portion of the bracket is permanently secured to the bar 8, by means ofrivets or equivalent fastenings 22. Thebase of the bracket is eX- tended in a lateral direction beneath the track 1, where it may be connected with the door by means of the usual adjustment screws The upper end of the track 1., is provided with bolts 24?, which are adapted to be adjusted laterally in correspondingly formed slots 25, in a supporting rail 26. v

An essential feature of my invention consists'in the construction of the channeled track 1 with the bottom wall 4 and provision of the lower set of antifriction bearings 17 between the sameand the base of the sliding bar 8. By this means a three-point suspension for the door is provided comprising the two upper sets of side bearings 17 and the bottom set of bearings 17. One advantage gained by this construction is that the strain of the weight of the door is part1 removed from the upper side bearings 1 and a certain proportion of the weight transferred to the bottom bearings 17, thus uniformly impose the strain on all three suspension points. 'By thus relieving the side bearings from the total dead weight of the door and imposing upon them only a portion of theweight, it will be bbvious that outward thrust pressure of the side bearings upon the walls 2 and'3, caused by the down pull of the door, is entirely avoided, and spreading of such Walls under such pressure thereby prevented- Hence the use of clips or othe'r braces to reinforcethe side walls maybe dispensed with and the track may be made of thinner metal and of'restricted width without sacrificing structural strength. As, also, the strain is mutually "sustained by'the three sets of bearings, there "isa reductionof frictional pressure and con sequently greater ease of motion of theba'r '8 is'obta'ined. As shown, the bottom bearings 17 are preferably in a vertical planeiparallel avoid the presence of an unsightly gap be supporting the door so as to mutually and with and equidistantly between the vertical planes of the side bearings, While the latter are disposed in transverse alinement above the horiz ontalcent'er of the bar 8. The effect of this arrangement is to better dispose 2 the bearing surfaces to stably support the bar 8 and to establish counteracting resist.-

;by,the bottom bearing in fact rather more than compensating for any theoretical loss of strength from the use of thinner metal. The use of comparativelyithin metal also allows the track to be made of narrow width to suit thin doors, which, 'as the use of clips or other braces adding width mayalso be. dispensed with, permits of the mounting of two thin sliding doors in close relation to tween them andthe use of abrasion strips 7 or the like upon the doors to conceal'such gap. Doors of restricted thickness may therefore be hungin' a compact and highly finished manner, as will be readily under stood. V i What is claimed as new is;

1. In a door hanger,,a track ha 'ng side walls and a bottom wall, a hanger bar between said side walls and abovesaid bottom wall, said hangerbar and said track being slidably movable with respect to each other, the opposing lateral faces of the barand side 1 walls being provided with coactinggrooves forming supporting surfaces and raeeways, sets of antifriction bearing members ehgag ing said raceways between the said opposing lateral faces of the side wallsand hanger bar and supporting the bar from'said side walls, and a set of antifriction bearing members interposed between the'base of the hanger bar and the bottom wall and additionally supporting-"the bar from said' bottom wall: :8 2. In a doorhanger, a'track having side walls and a bottom Wall,-ahanger bar between saidside walls and above said bottom wall, saidrhanger barrand said track being slidably movable with respect to eachother, the said bar and sidewalls having "pai allel vertical 'faces'provided with coa'cting grooves forming supporting surfaces and raceways arranged in transverse alinement 7 above the horizontalcenter of the bar, and

the opposing-faces" of :theibamand :bottoni 130 wall being provided with co-acting grooves forming a raceway disposed in a vertical plane on a line between the first named raceways, sets of antifriction bearing members disposed in said raceways between the said opposing faces of the side walls and hanger bar and supporting the bar from said side walls, and a set of antifriction bearing members disposed in said raceway between the bar and bottom wall and additionally supporting the bar from the bottom wall.

3. In a door hanger, a channeled track having side walls, one of said side walls depending below the other and provided with a flange disposed on a line between said side walls, a hanger bar mounted between the side walls and above the bottom wall, said hanger bar and said track being slidably movable with respect to each other, the bar and side walls having opposed vertical faces provided with grooves forming supporting surfaces and raceways and the opposing surfaces of the bar and bottom wall being provided with grooves forming a raceway disposed on a vertical line between the first named raceways, sets of antifriction bearing members disposed in the raceways between the opposing faces of the hanger bar and the side walls and supporting the said bar from said side walls, and a set of antifriction bearing members disposed in the raceway between the bar and the bottom wall and additionally supporting the bar from the bottom wall.

ULYSSES Gr. MCQUEEN. 

